Question

Electric Field strength at a point charge is E and electric potential is V at a distance r from the point charge. What is the electric potential at a point for the same point
charge where electric field strength is E/4?
A) V/4
C) 4V
B) 2 V
D) V/2
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Answer 1

Answer:

Thus V for a point charge decreases with distance, whereas E for a point charge decreases with distance squared: E=Fq=kQr2 E = F q = k Q r 2 . Recall that the electric potential V is a scalar and has no direction, whereas the electric field E is a vector. and please follow me and marks as me brilliant

Answer 2

Answer:

D

Explanation:

E=kq / r^2

E is inversely related to r^2..so,

E/E' = r'^2 / r^2

E/(E/4) = r'^2 / r^2

r'^2 = 4 r^2

r' = 2r

Since,

V=kq/r

V' = kq/r' = kq/2r = V/2